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Finding the Fourth Proportional to 17,159.58, 25,739.04 and 4,679.40

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Solution

The fourth proportional to 17,159.58, 25,739.04 and 4,679.40 is: 7,019.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,159.58 : 25,739.04 = 4,679.40 : x
  2. Step 2: Convert to fraction form
    17,159.58/25,739.04 = 4,679.40/x
  3. Step 3: Cross multiply
    17,159.58x = 25,739.04 × 4,679.40
  4. Step 4: Simplify right side
    17,159.58x = 120,443,263.78
  5. Step 5: Solve for x
    x = 120,443,263.78/17,159.58
  6. Step 6: Final answer
    x = 7,019.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.